DE1982831U - TRAILER HITCH. - Google Patents

Description

RA. 0: 31121 * 1/17/68

Patent Attorneys. Dipl.-Ing. F. Weickmann, Dr. Ing.A.Weickmann

Dipl.-Ing. H.Wexckmann, Dipl.-Phys.Dr.E ^ FiNCKE Dipl.-Ing. F. A. Weickmann, Dipl.-Chem. B. Huber

8 MUNICH 27, DEN

MÖHLSTRASSE 22, CALL NUMBER 48 3921/22

Johann JRoekinger, 8 Munich 8, Orleansstraße 12

trailer hitch

The fire "refers to a trailer coupling for vehicles, with buckets coupling head, which is rotatably mounted in a fastening bracket by means of a tension element and an anchoring flange attached to this tension element, the anchoring flange increasing in diameter compared to the diameter of the tension element Enhancements used at the mounting block is ο

With such a coupling, in order to maintain the rotatability of the coupling head, Sehmier grease must be introduced into the bearing. This lubricating grease occurs in the known trailer hitches regularly. after some time between the anchoring head of the Tension element and the mounting bracket. This is what you want Avoid, however, because this leads to increased maintenance costs

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for the coupling and because the bearing suffers if there is a loss of lubricant.

The task of the present inflation is a trailer coupling to create, which avoids these disadvantages.

To solve this problem, the trailer coupling of the type mentioned is characterized in that the anchoring sflansch'und the extension of the receiving it Mounting bracket a receiving groove for .ein.sealing element define.

Suitably, the anchoring flange at least at its end pointing to the vehicle, a conical taper, which together with the Xnnenumfangsf! Laugh defines the extension of the Befestigungsboeks an approximately triangular in cross-section Aufnahmeringnut "

The extension of the fastening back can be done with a Be connected to lubricant bore, through which lubricant can be introduced into the clutch bearing in a simple manner.

It is possible that the end remote from the coupling head of the fastening book one the extension and the receiving groove covering end plate carries.

This end plate closes the clutch bearing in the essentially dirt-tight and at the same time holds the sealing element in place.

A sealing ring made of a suitable sealing material and matched in the cross section of the receiving groove can be used as the sealing element such as (xummi or plastic are used »

The enclosed figures explain the firing "

It represent *

Fig. 1 is a schematic representation of the innovation according to the invention Trailer coupling in side view and partially cut

FIG. 2 shows the detail enclosed by circle II in FIG. 1 of Fig. 1 enlarged.

In the figures jsfc the .new clutch in general denoted by 10. It comprises a coupling head 12 with a cylindrically designed pull rod 14 »which in one on one Vehicle (not shown) attached fastening bracket 16 is rotatably mounted. The end of the tie rod 14 remote from the coupling head 12 carries an anchor flange 18 which in diameter! ' is larger than the pull rod 14 «The pull rod passes through a bearing bore 20 of the mounting bracket 16. The Yerankeruagsflansch 18 attached to the tie rod 14 is seated in an approximately cylindrical end extension 22 of the bearing bore

The anchoring flange is on part of its circumference covered at 24 so that it ironically tapers outwards ο the The conically tapering section 24 of the anchorage flange 18 forms together with the inner circumferential surface of the extension of the fastening book 16 is approximately triangular in cross section Hing groove 26 which receives a correspondingly designed sealing ring 28. The sealing ring 28 is in the Receiving groove 26 held by a screw 30 'on the from the coupling head 12 remote end of the mounting bracket supported cover plate 32.

The cylindrical extension 20 of the mounting bracket 16 is connected to a lubricant supply bore 34, on the insertion end of which is provided with a sealing nipple 36.

The end of the Sehmiermittel that is opposite the grease nipple 36 · » Feed bore 34 opens into a lubricant distribution channel 38, which encloses the extension 22 of the mounting bracket.

Scfruta claims -

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Claims (1)

P.A.031121 * 1 ?. 1 Protection claims 8 . Trailer coupling for vehicles with a coupling head, which by means of a Zaga.eme.ntes and one on this tension element "attached Yerankerungsflanseh is rotatably mounted in a fastening book, the Yerankerungsflanseh used in an enlarged in diameter compared to the diameter of the tension element on the mounting bracket is, characterized in that the Veramkerungsflansch (18) and the extension (22) of the mounting bracket (16) accommodating it, a receiving groove (26) for a Define sealing element (28). 2. trailer coupling .according to claim 1, characterized in that that the anchoring flange (18) at least on its to ! Vehicle pointing end has a conical taper (24), which together with the inner circumferential surface of the (22)
Extension / of the mounting bracket (16) one in cross section approximately triangular receiving ring groove (26) is defined. 3 ' trailer coupling according to one of Claims 1 and 2, characterized in that the extension (22) of the fastening block (16) is connected to a lubricant bore (34, 36) is. "■" '■ -.- ■ .- ,. ■■■■ "'■ - 6 4 · Trailer coupling according to one of claims 1 - "3» thereby characterized in that the remote from the coupling head (12) End of the mounting bracket (16) an end plate (32) covering the extension (22) and the receiving groove (26) wearing. 5. Trailer coupling according to one of claims 1 = 4, characterized characterized in that the sealing element (28) is a sealing ring which is adapted in the cross section of the receiving groove (26) Made of rubber, plastic or the like. Material is provided.